Residual heat warning (HOT)
In order to prevent the risk of burns from the heating plate, the digital plate has a residual heat
warning function. When the heating function is switched OFF and the heating plate temperature is
still above 50 °C, the LCD will flash “HOT” to warn of the hazard of burns. When the unit is powered
off, the LED screen displays the temperature of the heating plate and “HOT” in turn. When the plate’s
temperature drops to below 50 °C, the unit will automatically switch off. If you wish to turn off the
LED immediately, just pull out the plug directly. When the plug is pulled out, the residual heat warning
function cannot be run.
Stirring function
The “stirring” function is switched ON or OFF by pushing the speed control knob. The speed range is
100 to 1500 rpm, in increments of 10 rpm.
Troubleshooting
•
Instrument can not be powered ON:
- check that the power cord is plugged in.
•
Fault in power on self test:
- switch OFF the unit, then switch ON and reset the instrument to factory default setting.
•
Stirring speed will not reach set point:
- excessive medium viscosity may cause abnormal speed reduction of the motor.
•
Unit does not power down when switched OFF:
- check if the residual heat warning function is still ON and the heating plate temperature is
above 50 °C (the LED screen will be flashing “HOT”).
6. Maintenance and cleaning
•
Proper maintenance and cleaning will keep the instrument in good working order and will
extend its life time.
•
Be careful not to spray cleaning fluid into the instrument. Unplug the power cord when
cleaning.
•
Please use only Isopropyl alcohol and water containing tenside.
•
Wear protective gloves during cleaning of the instrument.
•
When not in use for long periods, switch off the instrument and store it in a dry, clean and stable
place at room temperature.
